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Loss From Equity Method Investments - More Life - Additional Information (Details) - CAD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 01, 2021
Nov. 07, 2019
Mar. 31, 2021
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2022
Schedule Of Equity Method Investments [Line Items]            
Goodwill     $ 1,889,354 $ 1,889,354 $ 1,954,471 $ 1,866,503
More Life            
Schedule Of Equity Method Investments [Line Items]            
Ownership interest   60.00%        
Fair value of retained interest         10,300  
Impairment charge related to remaining intangible assets         32,717  
Derecognized royalty obligations $ 33,681          
Fair value of equity method investments           $ 25,200
Impairment of equity method investments     $ 10,300 $ 10,300 $ 14,900  
More Life | Drake            
Schedule Of Equity Method Investments [Line Items]            
Ownership percentage   40.00%        
Ownership interest   60.00%        
More Life | 1955625 Ontario Inc.            
Schedule Of Equity Method Investments [Line Items]            
Percentage of ownership to be sold   100.00%        
Goodwill   $ 0        
Fair value of retained interest   $ 25,200